Roller-bearing.



W. H. MAKUTOHAN.

ROLLER BEARING.

APPLICATION PILED JUNE 10, 190'?` Patented Nov. 17,1908.

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PATENT @FFL/l.,

WILLIAM Il. MAKUTOIIN, OF CHICAGO, ILLINOIS.

yROLLER-BE ARING.

Specification of Letters Patent,

Patented Nov. 1'7, 1908.

implication'ledJuneJ.01 1907. Serial No. 378,213.

T o` all whom it may concern:

Be it known that `I, 'VViLLIAM H. 'MA- KUTGHAN, a citizen of the United States, residing t Chicago, in the county ot' Cook and State o Illinois, have invented a new and useful'Roller-Bearing, otl which the following isa specification.

This invention relates to that class of antifriction bearings in which a circular series of niovable rollers is held between bearing surfaces which are made adjustable to Atake up wear.y

The object of the invention is to provide an accurate roller bearing for use in all places where a bearing of this type can be employed, the construction of which` is siniple and strong and may be easily ,applied wherever desired with little change necessary in the mechanism receiving thebearing.

In' the Aaccompanying drawing z-Figure l is a sectional perspective view of the improved roller bearing. Fig. 2 is a cross sectional view of the same. Fig. 3 illustrates in perspective the several parts oit the bearing separated. Fig. 4 is a longitudinal sec tional view of two of the bearings applied to a vehicle hub. Similar numerals of reference indicate the several parts in all the figures. lVithin a casing 1, preferably cylindrical,

" is contained-the several parts ot the roller bearing. At one end of the shell is a short inwardly extending flange 2 to retain the parts .in place at that end, while at the opposite end of the shell there is cut an interior thread as shown.

Fitting snugly within the shell 1 are two cylindrical bearing rings 3 and 4, the inner faces 5 ofwhich are tapered at the saine angle but reversely. One of the rings, as 3, when assembled rests against the flange 2, as shown, with its narrower edge 6 facing outwardly. Slightly separated from the ring 3 is the ring 4, its narrow edge 7 facing inwardly or towards the narrow edge of the ring 3L Within the rings 3 and 4 is a sleeve 8 having a central or-axial opening 9 of suiicient size to easily fit an axle or shaft 10, (see Fig. 4.) The peripheral surface 11 of the sleeve 8 is tapered from each end inwardly towards the center at the same angle as the inner faces' of the circumjacent rings 3 and 4 but in reverse directions to said rings. At the longitudinal center of the sleeve 8 where fthe diameter is least is a projecting angularshaped rib 12. The space between the collars 3 and 4 and the sleeveS serves as arace or track tor the rollers 13, each of which is )infile-shaped, as represented in the drawings, with a groove 14 extending around its longitudinal center of the saine size and shape in cross section as the' rib 12 on the sleeve. By means ot' the rib- 12 and the grooves 14 in the spindles, the latter are kept in place and forced to remain in line and rotate on axes parallel to the axis ot' the shaft 10. The rollers 13, from the grooves 14 to their opposite ends, are tapered at the saine angle as the rings 3 and 4 and the peripheral surface ot the sleeve S.

From the above, it will be seen that when the rollers 13 are fitted between the sleeve '3 and the bearing rings 3 and 4, their shape will prevent them from moving longitudinally and that by moving the ring 4 inwardly, the bearing will be tightened and all lost motion between the parts taken up and rattling prevented. The movement of the bearing ring 4 tol tighten the bearing is accomplished by means of a threaded adjusting ring '15 screwed into the outer end of the casing until it contacts with the bearing ring 4 which latter is orced inwardly by turning the adjusting ring. lVhen the bearing has been properly tightened, a second threaded ring 16 is screwed against the adjusting ring 15 thus locking it and preventing it from loosening.

One application of the bearing is represented in Fig. 4 in connection with a vehicle axle. In this case two bearings are used, one at the outer andA one at the inner end of the axle 10 and are alike in all respects except as to size, the inner bearing being the larger because of the tapering shape or the spindle. The flanges 2. and 2 on the casings l and 1 are `Wider and have attached` to them tubular projections 17 which lit one within the. other and join in the manner o the well known slip sleeve box. In ythe example shown there is a flange 19 on the axle against which a leather washer 2O is seated to form an abutment for the sleeve 8. A peripheral groove 21 is cut in the flange 19 for a dust ring 22, which extends outwardly to the adjusting ring 15. .The outer end of the spindle 10 carries a leather washer 23 held thereon by a nut 24 screwed on the reduced threaded lug 25 projecting from the end of the axle. The sleeves 8 tit easily on the axle spindle and have afree end movement thereon, the leather washers 20 and 23 act as cushions to limit their movement but permit a free and independent motion ,of the sleeves and rollers to enable the said parts to adjust themselves to one another.

Having described my invention what I claim as new and desire to secure by Letters-Patent is z- 1. A roller bearing comprising an inner sleeve tapering toward the center from each end and there formed with an annular rib, reversely coned rollers having their bases joined andthere provided with a peripheral groove into which the annular ribs ts, the rollers being of the same length as the sleeve, outer separate bearing rings having their inner faces tapered to conform to `the cone ends of the rollers, said rings projecting beyond the ends of the rollers and sleeve, an

outer casing for the bearing rings, and meansv for moving the bearing rings axially without contacting with Ithe ends =of the sleeve.

2. A roller bearing comprising an inner i sleeve tapering towardthe center from each end, reversely coned rollers with the-bases of the cones adjacent and joined, the rollers being of the same length as the sleeve, outer separate bearing rings having their inner faces tapered to conform to the cone ends of the rollers, said rings projecting beyond the ends of the rollers and sleeve, an outer casing for the bearing rings, and means for' moving the bearing rings axially without contacting with the ends of the sleeve.

3. In a roller bearing .for axles, a sleeve having its outer surface tapered toward .the center, a yielding abutment for one end of the sleeve, rollers each formed of two reversed cones joined at the basesand adapted to the tapered face of the sleeve, outer separate bearing rings having their inner faces tapered to conform to-the cone ends of the rollers, and means acting directly on the rings for adjusting them simultaneously toward each other and reacting through the rings and rollersto center the sleeve relative -to the said rings and rollers.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

IVILLIAM H. MAKUTCHAN. Witnesses:

THOMAS C. TAYLOR, J. W. TAYLOR. 

